Return-Path: Received: from imf24aec.mail.bellsouth.net ([205.152.59.72] verified) by logan.com (CommuniGate Pro SMTP 4.2b8) with ESMTP id 322841 for flyrotary@lancaironline.net; Thu, 15 Jul 2004 16:54:32 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.72; envelope-from=atlasyts@bellsouth.net Received: from [65.11.54.150] by imf24aec.mail.bellsouth.net (InterMail vM.5.01.06.08 201-253-122-130-108-20031117) with ESMTP id <20040715205402.HYLY1737.imf24aec.mail.bellsouth.net@[65.11.54.150]> for ; Thu, 15 Jul 2004 16:54:02 -0400 User-Agent: Microsoft-Entourage/10.1.4.030702.0 Date: Thu, 15 Jul 2004 16:53:40 -0400 Subject: Re: [FlyRotary] Re: New Scoop From: Bulent Aliev To: Rotary motors in aircraft Message-ID: In-Reply-To: Mime-version: 1.0 Content-type: text/plain; charset="US-ASCII" Content-transfer-encoding: 7bit Dean, in case you have not noticed, Cozy strakes are flat on top. Not much of an airfoil. I know people with VEZ's that use the same spot for oil coolers without any aerodynamic problems. Don't wary about it. Jus build and be happy :) Bulent On 7/15/04 4:16 PM, "banana@atlantic.net" wrote: > Al, > I don't know exactly how to phrase this question but I'll take a stab at it. > When you decided to place the heat exchangers in the wings how did you > estimate > the effect(if any) due to impact on the designed airfoil(s)? I think this is a > great place for them in the canard designs. I am thinking about the spaces in > the rear of the strakes for mine. > Dean Head > Cozy MK4 > BKV FL > > > Quoting Al Gietzen : > >> Subject: [FlyRotary] Re: New Scoop >> >> >> >> Al, >> Do you have any photos of your oil cooler install showing the >> airflow path? >> >> Joe Berki >> Limo EZ >> >> >> >> My oil cooler is in the wing root. The intake is on the bottom just behind >> the spar, and the exit is out the top further back. It matches a coolant >> rad in the other wing. >> >> The first pic show the oil cooler. The second is the inlet "scoop" - not >> really a scoop, just an airfoil lip that extends down into the air flow >> about 1/2". The third pic shows the rough ducting (early version of exit >> fairing) for the coolant rad; the oil cooler is similar, and the fourth pic >> shows the exit fairing. The flow through this cooler (and the wing root rad) >> is enhanced by the normal pressure difference between the bottom and top of >> the wing. At this position of the wing the difference should be higher at >> higher angle of attack. >> >> >> >> Al >> >>